GB27901-2011

Portable fire smoke ventilator

移动式消防排烟机

GB 27901-2011 est une norme nationale chinoise obligatoire en vigueur : Portable fire smoke ventilator. Secteur : Environnement. Thème principal : Sécurité des produits. Entrée en vigueur : 1 juin 2012.

L’applicabilité dépend du périmètre du produit, de la voie de certification, des avis des autorités et des règles de transition. Demandez une traduction ou vérifiez la source avant d’utiliser cette fiche pour une décision de conformité.

Aperçu de conformité

Cet aperçu n’est actuellement disponible qu’en anglais.

Champ d’application

This standard applies to manually portable fire smoke ventilators with a total mass not exceeding 100kg, including internal combustion engine, electric, and hydraulic types. It is not applicable to fixed, vehicle-mounted, or explosion-proof fire smoke ventilators. Engineers must verify if their product falls under the manually portable category to determine applicability. The standard covers terminology, model designation, technical requirements, and inspection rules.

Exigences techniques

GB 27901-2011 specifies the mandatory technical requirements for portable fire smoke ventilators. Core parameters include overall mass limits, airflow performance deviations, and noise limits during operation. The standard also mandates the installation of safety nets with specific maximum gap limitations to prevent personal injury. For internal combustion engine ventilators, the standard outlines requirements for low-temperature starting performance, battery capacity, and fuel tank volume to ensure continuous operation. Hydraulic ventilators must meet strict hydraulic pressure sealing and strength criteria, while electric ventilators must achieve a minimum enclosure protection rating, typically IP54 or higher. All applicable products must pass continuous operation stability and inclined operation tests without oil leakage or mechanical loosening. Additionally, hydraulic and electric ventilators must demonstrate high-temperature resistance by operating continuously in high-temperature airflow for a specified duration. Cart-type variants must meet specific frame and traveling performance standards, including pulling on rough roads and drop tests.

Méthodes d’essai

The standard outlines various testing methods to verify compliance. Airflow performance tests are conducted according to GB/T 1236, while noise measurement tests follow GB/T 2888. Other key evaluations include continuous operation stability tests, inclined operation tests, and low-temperature starting tests for engine-driven models. Hydraulic ventilators undergo hydrostatic sealing and strength tests, while cart-type ventilators are subjected to rigorous traveling performance tests, including pulling on rough surfaces and drop tests. Manufacturers must ensure their products pass both factory and type inspections to be legally sold in the Chinese market. High-temperature performance tests are conducted in accordance with GA 211.

Questions fréquentes

What products are regulated under GB 27901-2011?

It applies to manually portable fire smoke ventilators, including internal combustion engine, electric, and hydraulic types, with a total mass not exceeding 100kg. It excludes fixed, vehicle-mounted, or explosion-proof ventilators.

Are the clauses in GB 27901-2011 mandatory?

Yes, Chapter 5 (Technical Requirements), Chapter 7 (Inspection Rules), and 8.1 (Marking) are mandatory. Manufacturers must comply with these specific sections to market their products in China.

How does the standard address different power sources?

The standard provides specific requirements for internal combustion engine, hydraulic, and electric ventilators. For instance, engine types have low-temperature starting and fuel tank requirements, hydraulic types must pass pressure strength tests, and electric types must meet minimum enclosure protection ratings.

The summary above provides a high-level overview of GB 27901-2011. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 27901-2011 today to access all detailed parameters, tables, and testing procedures.

Indications d’applicabilité

Type: Produit
CCS: C85
ICS: 13.220.10
Autorité compétente: National Fire and Rescue Administration
Comité technique: National Technical Committee on Fire Protection of Standardization Administration of China